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20001210200 = 2352556317977
BaseRepresentation
bin10010101000001010…
…100011111101011000
31220121220210202022222
4102220022203331120
5311430302211300
613104411203212
71305435324116
oct225012437530
956556722288
1020001210200
118534186294
123a62446508
131b69a0c72a
14d7a51cab6
157c0e09785
hex4a82a3f58

20001210200 has 48 divisors (see below), whose sum is σ = 46513760280. Its totient is φ = 7998600960.

The previous prime is 20001210191. The next prime is 20001210239. The reversal of 20001210200 is 201210002.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1103612 + ... + 1121588.

Almost surely, 220001210200 is an apocalyptic number.

20001210200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001210200 is an abundant number, since it is smaller than the sum of its proper divisors (26512550080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001210200 is a wasteful number, since it uses less digits than its factorization.

20001210200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23556 (or 23547 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20001210200 its reverse (201210002), we get a palindrome (20202420202).

The spelling of 20001210200 in words is "twenty billion, one million, two hundred ten thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 5563 11126 17977 22252 27815 35954 44504 55630 71908 89885 111260 139075 143816 179770 222520 278150 359540 449425 556300 719080 898850 1112600 1797700 3595400 100006051 200012102 400024204 500030255 800048408 1000060510 2000121020 2500151275 4000242040 5000302550 10000605100 20001210200